Adjustable saw-guide.



Patented Nov. 28, |899'. J. C. FOX &.. M. W. MEBEDITH. Y

ADJUSTABLE SAW GUIDE.

(Applicashun med Aug. 2s 1899.)

(No Model.)

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STATES PATENT Orrrcn.

JOHN O. FOX AND MADISON W. MEREDI'II-I, OF ALLEGHENY, PENN- SYLVANIA. l

ADJUSTABLE SAW-G UIDE.

SPECIFICATION forming part of Letters Patent No. 638,049, dated November28, 1899.

` Application filed August 23, 1899. Serial No. 728,217. (No model.)

To all whom t may concern.-

Be it known that we, JOHN O. FOX and MADISON W.MEREDITH,citizens of theUnited States of America, residing at Allegheny, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Adjustable Saw-Guides, of which the following isa specification, reference being had therein to the accompanyingdrawings.

This invention relates to certain new and useful improvements insaw-guides, and has for its object the provision of novel means wherebythe saw will only be permitted to enter and cut a certain predetermineddepth in the wood.

A further object of the invention is to provide novel means which willpermit the saw to cut at any desired angle or degree; furthermore, to soarrange the parts that the saw will be heldin engagement with thesaw-guide and a disengagement therefrom will be "prevented.

Another object of the invention is to construct a saw-guide in such amanner that the saw-teeth will always be at a perfect right angle to theboard or wood that is to be cut.

A still further object of the invention is to construct a saw-guide thatwill be extremely simple in its construction, strong, durable, andhighly efficient in its operation; furthermore, one that will becomparatively inexpensive to manufacture.

With the above and other objects in view the invention nally consists inthe novel construction, combination, and arrangement of parts to behereinafter more fully described, and specifically pointed out in theclaims.

In describing the invention in detail reference is had to theaccompanying drawings, forming a part of this specification, whereinlike numerals of reference indicate corresponding parts throughout theseveral views, and in which- Figure l is a perspective view of oursawguide, showinga portion of the saw-blade attached thereto, the latterbeing represented in dotted lines. Fig. 2 is an end elevation of thesame. Fig. 3 is atop plan View of the same. Fig. 4 is a longitudinalsectional view taken 0n the line 4 Li of Fig. 3. Fig. 5 is a horizontalsectional view taken on the line 5 5 of Fig. 3.

Referring to the drawings by reference-numerals, 1 indicates thesaw-blade, 2 the sawteeth, and 3 represents the ridge of the same, uponwhich is secured a split sleeve 4, said sleeve carrying a thumb-screw 5,which is adapted to engage said ridge 3, and said sleeve serving as astop to limit the lateral movement of the saw against the guide proper.

The reference-n u meral 6 indicates the baseplate, said base-platehaving mounted thereon standards 7 7, said standards being bent overupon themselves, forminga downwardlyextending portion 8, the ends ofsaid down- Wardlyextending portion being bent in'- wardly, as shown at9.

The reference-numeral l0 indicates a brace connecting the standards 7 7and further serving to guide the saw-blade.

The reference-numeral 11 indicates an adjustable sleeve mounted upon thedownwardly-extendin g portion 8, said sleeve being provided withset-screws 12, which serve to engage the downwardly-extending portion 8and serving to rmlyhold in position the said sleeve l1. Extending fromthe base-plate 6 and formed integral therewith is a segmental arm 13,having arranged thereon graduations let. A movable arm 15 is pivotallysecured to the base-plate 6 at 16, said movable arm being slotted, as at17., for the reception of the segmental arm 13, a set-screw 18 beingarranged in the end of said arm adapted to engage the segmental arm 13and hold the former in any desired position. A scale 19 is arranged uponthe base-plate (5.

The operation of our improved saw-guide is as follows: When it isdesired to form a cut a certain predetermined depth, the sleeves 11 areadj usted accordingly, allowing the teeth 2 of the saw to extend belowthe hase-plate 6 a desired distance. The saw is then operated, and whenthe teeth enter the wood to a point where the upper faces of the sleevesl1 engage the under face of the ridge of the saw the desired depth inthe wood will be cut, the sleeve 4 serving to limit the movement of thesaw and preventing the disengagement taking place. The brace 10 and theinwardlyinclined ends 9 of the downwardly-extending portion 8 serve toretain the saw in a perfectly upright position at a right angle to thelumber that is t be out. When it is desired to cut an angle at a certaindegree, the movable arm is adjusted upon the segmental arm,

13, which will serve as a guide to accurately cut the desired angle.

From the foregoing description and illustration the many advantagesafforded by the use of our improved saw-guide Will be readily apparent,and a further description of the same is deemed unnecessary.

It Will be noted that various changes may be made in the details ofconstruction Without departing from the general spirit of our invention.Y

Having thus fully described our invention, what We claim as new, anddesire to secure by Letters Patent, is-

1. In a saw-guide, the combination of a base plate, standards mountedupon said base-plate, said standards being bent upon themselves,adjustable sleeves 'mounted on said bent-over portions, and a braceconnecting the said standards, substantially as set forth and described.

1 2. In a saw-guide, the combination of a base-plate, standards securedto said baseplate, said standards being bent over upon themselves andforming downwardly-extending portions,adjustable sleeves mounted uponsaid downwardly-extending portions, a segmental arm secured to saidbase-plate, and a movable arm pivotally secured to said baseplate andengaging with the said segmental arm, substantially as described, andfor the purpose set forth.

3. In a saw-guide, the combination of a base-plate, standards secured tosaid baseplate, said standards being bent over upon themselves formingdownwardly-extending portions, adjustable sleeves arranged on saiddownwardly-extending portions, a segmental arm rigidly secured to saidbase-plate, a movable arm pivotally attached to said base-plate andengaging With said segmental arm, a sawblade, a ridge formed on saidsaw-blade, and an adjustable split collar arranged on said ridge,substantially as described.

In testimony whereof We affix our signatures in the presence of twoWitnesses.

JOHN C. FOX. MADISON WV. MEREDITH.

Witnesses:

J oHN NOLAND, E. W. ARTHUR.

